LG AC Smart - Connecting RS485 Line to PI485

2. AC Smart Installation
AC Smart
2-11
Connecting PI485 to RS485 line
To connect PI485 and AC Smart, two RS485 lines must be connected to BUS_A and BUS_B of
PI485. Refer to the following figure to connect the RS485 line.
ON
L1 2 3 4
KSDO4H
10V CND
BUS_A BUS_B